| Summary: | Anopheles culicifacies s.l. plays an important role In transmission of malaria in Sistan and Baluchistan province, southeastern Iran. Adult susceptibility test on fieltt-collccled mosquitoes was conducted in Ohasreghand district. WHO diagnostic test procedures revealed that adult females were resistant to 0.4% dieUirin (mortality 64.5 ± 3.13), tolerant to 0.1% propoxur (mortality 88.5 ± 2.24) and susceptible to 4% DDT (mortality 98.75 ± 0.8). 5% malathion (mortality 100%), 0.1% bendiocarb (mortality 98.86 ± 0.7), 0.25% pcrmcthrin (mortality 98.4 ± 0.1), ami 0.1% lamhdacyhalothrin (mortality 100%). Malathion and lamhdacyhalothrin had the highest efficacy against this species when they were exposed at the diagnostic dose for 1 hour followed by a 24 hour recovery period. DieUirin, DDT a nil malathion had been used for malaria control as an indoor residual spraying. Tlic implication of these findings in the control programme is discussed.
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